1 /* GIMP - The GNU Image Manipulation Program
2  * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
3  *
4  * gimpcolorselectorpalette.c
5  * Copyright (C) 2006 Michael Natterer <mitch@gimp.org>
6  *
7  * This program is free software: you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 3 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
19  */
20 
21 #include "config.h"
22 
23 #include <gegl.h>
24 #include <gtk/gtk.h>
25 
26 #include "libgimpcolor/gimpcolor.h"
27 #include "libgimpwidgets/gimpwidgets.h"
28 
29 #include "widgets-types.h"
30 
31 #include "core/gimpcontext.h"
32 #include "core/gimppalette.h"
33 
34 #include "gimpcolorselectorpalette.h"
35 #include "gimppaletteview.h"
36 #include "gimpviewrendererpalette.h"
37 
38 #include "gimp-intl.h"
39 
40 
41 static void   gimp_color_selector_palette_set_color  (GimpColorSelector *selector,
42                                                       const GimpRGB     *rgb,
43                                                       const GimpHSV     *hsv);
44 static void   gimp_color_selector_palette_set_config (GimpColorSelector *selector,
45                                                       GimpColorConfig   *config);
46 
47 
G_DEFINE_TYPE(GimpColorSelectorPalette,gimp_color_selector_palette,GIMP_TYPE_COLOR_SELECTOR)48 G_DEFINE_TYPE (GimpColorSelectorPalette, gimp_color_selector_palette,
49                GIMP_TYPE_COLOR_SELECTOR)
50 
51 #define parent_class gimp_color_selector_palette_parent_class
52 
53 
54 static void
55 gimp_color_selector_palette_class_init (GimpColorSelectorPaletteClass *klass)
56 {
57   GimpColorSelectorClass *selector_class = GIMP_COLOR_SELECTOR_CLASS (klass);
58 
59   selector_class->name       = _("Palette");
60   selector_class->help_id    = "gimp-colorselector-palette";
61   selector_class->icon_name  = GIMP_ICON_PALETTE;
62   selector_class->set_color  = gimp_color_selector_palette_set_color;
63   selector_class->set_config = gimp_color_selector_palette_set_config;
64 }
65 
66 static void
gimp_color_selector_palette_init(GimpColorSelectorPalette * select)67 gimp_color_selector_palette_init (GimpColorSelectorPalette *select)
68 {
69 }
70 
71 static void
gimp_color_selector_palette_set_color(GimpColorSelector * selector,const GimpRGB * rgb,const GimpHSV * hsv)72 gimp_color_selector_palette_set_color (GimpColorSelector *selector,
73                                        const GimpRGB     *rgb,
74                                        const GimpHSV     *hsv)
75 {
76   GimpColorSelectorPalette *select = GIMP_COLOR_SELECTOR_PALETTE (selector);
77 
78   if (select->context)
79     {
80       GimpPalette *palette = gimp_context_get_palette (select->context);
81 
82       if (palette && gimp_palette_get_n_colors (palette) > 0)
83         {
84           GimpPaletteEntry *entry;
85 
86           entry = gimp_palette_find_entry (palette, rgb,
87                                            GIMP_PALETTE_VIEW (select->view)->selected);
88 
89           if (entry)
90             gimp_palette_view_select_entry (GIMP_PALETTE_VIEW (select->view),
91                                             entry);
92         }
93     }
94 }
95 
96 static void
gimp_color_selector_palette_palette_changed(GimpContext * context,GimpPalette * palette,GimpColorSelectorPalette * select)97 gimp_color_selector_palette_palette_changed (GimpContext              *context,
98                                              GimpPalette              *palette,
99                                              GimpColorSelectorPalette *select)
100 {
101   gimp_view_set_viewable (GIMP_VIEW (select->view), GIMP_VIEWABLE (palette));
102 }
103 
104 static void
gimp_color_selector_palette_entry_clicked(GimpPaletteView * view,GimpPaletteEntry * entry,GdkModifierType state,GimpColorSelector * selector)105 gimp_color_selector_palette_entry_clicked (GimpPaletteView   *view,
106                                            GimpPaletteEntry  *entry,
107                                            GdkModifierType    state,
108                                            GimpColorSelector *selector)
109 {
110   selector->rgb = entry->color;
111   gimp_rgb_to_hsv (&selector->rgb, &selector->hsv);
112 
113   gimp_color_selector_color_changed (selector);
114 }
115 
116 static void
gimp_color_selector_palette_set_config(GimpColorSelector * selector,GimpColorConfig * config)117 gimp_color_selector_palette_set_config (GimpColorSelector *selector,
118                                         GimpColorConfig   *config)
119 {
120   GimpColorSelectorPalette *select = GIMP_COLOR_SELECTOR_PALETTE (selector);
121 
122   if (select->context)
123     {
124       g_signal_handlers_disconnect_by_func (select->context,
125                                             gimp_color_selector_palette_palette_changed,
126                                             select);
127       gimp_view_renderer_set_context (GIMP_VIEW (select->view)->renderer,
128                                       NULL);
129 
130       g_clear_object (&select->context);
131     }
132 
133   if (config)
134     select->context = g_object_get_data (G_OBJECT (config), "gimp-context");
135 
136   if (select->context)
137     {
138       g_object_ref (select->context);
139 
140       if (! select->view)
141         {
142           GtkWidget *frame;
143 
144           frame = gtk_frame_new (NULL);
145           gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
146           gtk_box_pack_start (GTK_BOX (select), frame, TRUE, TRUE, 0);
147           gtk_widget_show (frame);
148 
149           select->view = gimp_view_new_full_by_types (select->context,
150                                                       GIMP_TYPE_PALETTE_VIEW,
151                                                       GIMP_TYPE_PALETTE,
152                                                       100, 100, 0,
153                                                       FALSE, TRUE, FALSE);
154           gimp_view_set_expand (GIMP_VIEW (select->view), TRUE);
155           gimp_view_renderer_palette_set_cell_size
156             (GIMP_VIEW_RENDERER_PALETTE (GIMP_VIEW (select->view)->renderer),
157              -1);
158           gimp_view_renderer_palette_set_draw_grid
159             (GIMP_VIEW_RENDERER_PALETTE (GIMP_VIEW (select->view)->renderer),
160              TRUE);
161           gtk_container_add (GTK_CONTAINER (frame), select->view);
162           gtk_widget_show (select->view);
163 
164           g_signal_connect (select->view, "entry-clicked",
165                             G_CALLBACK (gimp_color_selector_palette_entry_clicked),
166                             select);
167         }
168       else
169         {
170           gimp_view_renderer_set_context (GIMP_VIEW (select->view)->renderer,
171                                           select->context);
172         }
173 
174       g_signal_connect_object (select->context, "palette-changed",
175                                G_CALLBACK (gimp_color_selector_palette_palette_changed),
176                                select, 0);
177 
178       gimp_color_selector_palette_palette_changed (select->context,
179                                                    gimp_context_get_palette (select->context),
180                                                    select);
181     }
182 }
183